The Scattering of Protons from Carbon

Using the impulse approximation, a formula has been derived which gives the energy spectra of protons scattered from carbon in terms of the nuclear momentum distribution. Estimates of the errors involved in this formula give values of 5-10 percent for a 340-Mev bombarding energy. A comparison is made with the experimental data of Cladis, and it is concluded that a Gaussian momentum distribution gives a good fit to his results.